The Brick Fan is reporting the names of Scooby Doo sets. Rumours of the imminent release of sets based on the license have been around for a while, now this list appears to confirm them:
75900 Mummy Museum Mystery
75901 Mystery Plane Adventures
75902 The Mystery Machine
75903 Haunted Lighthouse
75904 Mystery Mansion
Allen at TBF adds "there’s no mentioning of whether the sets will be based on the old school Scooby-Doo show or from the upcoming Cartoon Network series Be Cool, Scooby-Doo!"
If I had to guess I'd say they are more likely to be based on the latter given the age of the former -- it was first on TV when I were a lad in the '70s!